Cindi Arleen Estrada was identified as the young woman found dead along Interstate 90 in northern Wyoming after investigators spent decades trying to name a body found on April 13, 1992. Highway workers discovered her decomposing remains in a borrow ditch about fifteen miles north of Sheridan, roughly five miles south of the Montana border. She was fully clothed but missing socks and shoes, about 5 feet 5 inches, lightly built, approximately two and a half months pregnant, and had previously given birth. Autopsy findings indicated sexual assault and internal injuries consistent with beating and strangulation; evidence suggested she had been killed elsewhere and dumped along the highway.

At the time, investigators preserved semen on a paper towel and body swabs, but early DNA testing could not produce a usable match. A later male DNA profile linked her case to another Wyoming victim known as Bitter Creek Betty and to a 1991 Tennessee homicide, tying multiple highway deaths to the same perpetrator. If anyone knew Cindi Arleen Estrada, her travels, or has information that could help the ongoing investigation, please come forward.